Overhaul generic type reference lookup

IDEHelper/Compiler/BfContext.cpp

@@ -1127,7 +1127,6 @@ void BfContext::RebuildType(BfType* type, bool deleteOnDemandTypes, bool rebuild
 	if (typeInst->IsGenericTypeInstance())
 	{
 		auto genericTypeInstance = (BfTypeInstance*)typeInst;
-		genericTypeInstance->mGenericTypeInfo->mTypeGenericArgumentRefs.Clear();
 		for (auto genericParam : genericTypeInstance->mGenericTypeInfo->mGenericParams)
 			genericParam->Release();
 		genericTypeInstance->mGenericTypeInfo->mInitializedGenericParams = false;

IDEHelper/Compiler/BfModuleTypeUtils.cpp

@@ -7901,7 +7901,7 @@ BfTypeDef* BfModule::ResolveGenericInstanceDef(BfGenericInstanceTypeRef* generic
 	if (auto qualifiedTypeRef = BfNodeDynCast<BfQualifiedTypeReference>(typeRef))
 	{		
 		BfAutoParentNodeEntry autoParentNodeEntry(this, genericTypeRef);
-		auto type = ResolveTypeRef(qualifiedTypeRef, BfPopulateType_TypeDef, BfResolveTypeRefFlag_None, numGenericParams);
+		auto type = ResolveTypeRef(qualifiedTypeRef, BfPopulateType_TypeDef, resolveFlags, numGenericParams);
 		if (type == NULL)
 			return NULL;
 		if (outType != NULL)
@@ -8946,7 +8946,7 @@ BfType* BfModule::ResolveTypeResult(BfTypeReference* typeRef, BfType* resolvedTy
 	if ((populateType > BfPopulateType_IdentityNoRemapAlias) && (!ResolveTypeResult_Validate(typeRef, resolvedTypeRef)))
 		return NULL;
 	
-	if (populateType != BfPopulateType_IdentityNoRemapAlias)
+	if ((populateType != BfPopulateType_TypeDef) && (populateType != BfPopulateType_IdentityNoRemapAlias))
 	{
 		while ((resolvedTypeRef != NULL) && (resolvedTypeRef->IsTypeAlias()))
 		{
@@ -10789,36 +10789,48 @@ BfType* BfModule::ResolveTypeRef(BfTypeReference* typeRef, BfPopulateType popula
 	}
 	else if (auto genericTypeInstRef = BfNodeDynCast<BfGenericInstanceTypeRef>(typeRef))
 	{
-		int wantNumGenericParams = genericTypeInstRef->GetGenericArgCount();
+		BfTypeReference* outerTypeRef = NULL;		
-		BfTypeDef* ambiguousTypeDef = NULL;
 
 		Array<BfAstNode*> genericArguments;
-		std::function<void(BfTypeReference*)> _GetTypeRefs = [&](BfTypeReference* typeRef)
+
+		BfTypeReference* checkTypeRef = genericTypeInstRef;
+		int checkIdx = 0;
+
+		while (checkTypeRef != NULL)
 		{
-			//TODO:GENERICS
+			checkIdx++;
-			if (auto elementedTypeRef = BfNodeDynCast<BfElementedTypeRef>(typeRef))
+			if (checkIdx >= 3)
 			{
-				_GetTypeRefs(elementedTypeRef->mElementType);
+				outerTypeRef = checkTypeRef;
-			}
+				break;
-			else if (auto qualifiedTypeRef = BfNodeDynCast<BfQualifiedTypeReference>(typeRef))
-			{
-				_GetTypeRefs(qualifiedTypeRef->mLeft);
 			}
 
-			if (auto genericTypeRef = BfNodeDynCast<BfGenericInstanceTypeRef>(typeRef))
+			if (auto genericTypeRef = BfNodeDynCast<BfGenericInstanceTypeRef>(checkTypeRef))
 			{				
 				for (auto genericArg : genericTypeRef->mGenericArguments)
 					genericArguments.push_back(genericArg);
+				checkTypeRef = genericTypeRef->mElementType;
+				continue;
+			}
+
+			if (auto elementedTypeRef = BfNodeDynCast<BfElementedTypeRef>(checkTypeRef))
+			{
+				checkTypeRef = elementedTypeRef->mElementType;
+				continue;
+			}
+
+			if (auto qualifiedTypeRef = BfNodeDynCast<BfQualifiedTypeReference>(checkTypeRef))
+			{
+				checkTypeRef = qualifiedTypeRef->mLeft;
+				continue;
+			}
+			break;
 		}
-		};
-		_GetTypeRefs(genericTypeInstRef);
 		
 		BfTypeVector genericArgs;
 
 		BfType* type = NULL;
 		BfTypeDef* typeDef = ResolveGenericInstanceDef(genericTypeInstRef, &type, resolveFlags);
-		if(ambiguousTypeDef != NULL)
-			ShowAmbiguousTypeError(typeRef, typeDef, ambiguousTypeDef);
 		if (typeDef == NULL)
 		{
 			Fail("Unable to resolve type", typeRef);
@@ -10826,13 +10838,26 @@ BfType* BfModule::ResolveTypeRef(BfTypeReference* typeRef, BfPopulateType popula
 			return ResolveTypeResult(typeRef, NULL, populateType, resolveFlags);
 		}
 		
-		BfTypeInstance* outerTypeInstance = mCurTypeInstance;
+		BfTypeInstance* outerTypeInstance = NULL;
-		
-		auto outerType = typeDef->mOuterType;
 		BfTypeDef* commonOuterType = NULL;
-
 		int startDefGenericParamIdx = 0;
+
+		if (outerTypeRef != NULL)
+		{						
+			BfType* outerType = lookupCtx.GetCachedResolvedType(outerTypeRef);
+			if (outerType != NULL)
+			{
+				outerTypeInstance = outerType->ToTypeInstance();
+				commonOuterType = outerTypeInstance->mTypeDef;
+			}
+		}
+		else
+		{						
+			outerTypeInstance = mCurTypeInstance;
+			auto outerType = typeDef->mOuterType;						
 			commonOuterType = BfResolvedTypeSet::FindRootCommonOuterType(outerType, &lookupCtx, outerTypeInstance);
+		}
+
 		if ((commonOuterType) && (outerTypeInstance->IsGenericTypeInstance()))
 		{
 			startDefGenericParamIdx = (int)commonOuterType->mGenericParamDefs.size();
@@ -10936,7 +10961,6 @@ BfType* BfModule::ResolveTypeRef(BfTypeReference* typeRef, BfPopulateType popula
 			
 			genericTypeInst->mGenericTypeInfo->mMaxGenericDepth = BF_MAX(genericTypeInst->mGenericTypeInfo->mMaxGenericDepth, genericArg->GetGenericDepth() + 1);			
 			genericTypeInst->mGenericTypeInfo->mTypeGenericArguments.push_back(genericArg);
-			genericTypeInst->mGenericTypeInfo->mTypeGenericArgumentRefs.push_back(genericArgRef);
 
 			genericParamIdx++;
 		}

IDEHelper/Compiler/BfResolvedTypeUtils.cpp

@@ -2492,7 +2492,6 @@ bool BfTypeInstance::IsTypeMemberIncluded(BfTypeDef* typeDef, BfTypeDef* activeT
 void BfGenericTypeInfo::ReportMemory(MemReporter* memReporter)
 {	
 	memReporter->Add(sizeof(BfGenericTypeInfo));
-	memReporter->AddVec(mTypeGenericArgumentRefs, false);
 	memReporter->AddVec(mTypeGenericArguments, false);
 	memReporter->AddVec(mGenericParams, false);
 	memReporter->AddVec(mProjectsReferenced, false);
@@ -3133,20 +3132,11 @@ int BfResolvedTypeSet::Hash(BfType* type, LookupContext* ctx, bool allowRef, int
 
 void BfResolvedTypeSet::HashGenericArguments(BfTypeReference* typeRef, LookupContext* ctx, int& hashVal, int hashSeed)
 {
-	if (auto elementedTypeRef = BfNodeDynCast<BfElementedTypeRef>(typeRef))
-	{
-		HashGenericArguments(elementedTypeRef->mElementType, ctx, hashVal, hashSeed);
-	}
-	else if (auto qualifiedTypeRef = BfNodeDynCast<BfQualifiedTypeReference>(typeRef))
-	{
-		HashGenericArguments(qualifiedTypeRef->mLeft, ctx, hashVal, hashSeed);
-	}
-
 	if (auto genericTypeRef = BfNodeDynCast<BfGenericInstanceTypeRef>(typeRef))
 	{
 		for (int genericIdx = 0; genericIdx < BF_MAX(genericTypeRef->mGenericArguments.mSize, genericTypeRef->mCommas.mSize + 1); genericIdx++)
 		{
-			bool allowUnboundGeneric = ((ctx->mResolveFlags & BfResolveTypeRefFlag_AllowUnboundGeneric) != 0) && (typeRef == ctx->mRootTypeRef);
+			bool allowUnboundGeneric = ((ctx->mResolveFlags & BfResolveTypeRefFlag_AllowUnboundGeneric) != 0) && (hashSeed == 0);
 
 			BfAstNode* genericArgTypeRef = NULL;
 			if (genericIdx < genericTypeRef->mGenericArguments.mSize)			
@@ -3352,18 +3342,62 @@ int BfResolvedTypeSet::DoHash(BfTypeReference* typeRef, LookupContext* ctx, BfHa
 			}
 		}
 		
-		int hashVal;
+		bool fullyQualified = false;
-		/*if (type != NULL)
+		int hashVal = elementTypeDef->mHash;
-		{
-			hashVal = Hash(type, ctx);
-		}
-		else */
-		{
 		
+		BfTypeInstance* outerType = NULL;
 
-			hashVal = elementTypeDef->mHash;
+		if (genericInstTypeRef->ToString() == "ClassA<T>.AliasA6<float>")
+		{
+			NOP;
 		}
 
+		int checkIdx = 0;
+		auto checkTypeRef = genericInstTypeRef->mElementType;
+		while (checkTypeRef != NULL)
+		{
+			checkIdx++;
+			if (checkIdx >= 2)
+			{
+				fullyQualified = true;
+				if ((elementTypeDef->mOuterType != NULL) && (!elementTypeDef->mOuterType->mGenericParamDefs.IsEmpty()))
+				{
+					auto resolvedType = ctx->mModule->ResolveTypeRef(checkTypeRef, BfPopulateType_Identity, (BfResolveTypeRefFlags)(ctx->mResolveFlags | BfResolveTypeRefFlag_IgnoreLookupError));
+					if (resolvedType == NULL)
+					{
+						ctx->mFailed = true;
+						return hashVal;
+					}
+					ctx->SetCachedResolvedType(checkTypeRef, resolvedType);
+					outerType = resolvedType->ToTypeInstance();
+				}
+				break;
+			}
+
+			if (auto elementedTypeRef = BfNodeDynCast<BfElementedTypeRef>(checkTypeRef))
+			{
+				checkTypeRef = elementedTypeRef->mElementType;
+				continue;
+			}
+
+			if (auto qualifiedTypeRef = BfNodeDynCast<BfQualifiedTypeReference>(checkTypeRef))
+			{
+				checkTypeRef = qualifiedTypeRef->mLeft;
+				continue;
+			}			
+			break;
+		}
+		
+		if (fullyQualified)
+		{			
+			if (outerType != NULL)
+			{
+				for (auto genericArg : outerType->mGenericTypeInfo->mTypeGenericArguments)
+					hashVal = HASH_MIX(hashVal, Hash(genericArg, ctx, Beefy::BfResolvedTypeSet::BfHashFlag_None, hashSeed + 1));
+			}
+		}
+		else
+		{
 			// Do we need to add generic arguments from an in-context outer class?
 			if ((elementTypeDef->mOuterType != NULL) && (ctx->mModule->mCurTypeInstance != NULL))
 			{
@@ -3382,6 +3416,7 @@ int BfResolvedTypeSet::DoHash(BfTypeReference* typeRef, LookupContext* ctx, BfHa
 						hashVal = HASH_MIX(hashVal, Hash(parentTypeInstance->mGenericTypeInfo->mTypeGenericArguments[i], ctx, Beefy::BfResolvedTypeSet::BfHashFlag_None, hashSeed + 1));
 				}
 			}
+		}
 
 		HashGenericArguments(genericInstTypeRef, ctx, hashVal, hashSeed);
 
@@ -4056,10 +4091,12 @@ bool BfResolvedTypeSet::Equals(BfType* lhs, BfType* rhs, LookupContext* ctx)
 	return 0;
 }
 
-bool BfResolvedTypeSet::GenericTypeEquals(BfTypeInstance* lhsGenericType, BfTypeVector* lhsTypeGenericArguments, BfTypeReference* rhs, LookupContext* ctx, int& genericParamOffset)
+bool BfResolvedTypeSet::GenericTypeEquals(BfTypeInstance* lhsGenericType, BfTypeVector* lhsTypeGenericArguments, BfTypeReference* rhs, LookupContext* ctx, int& genericParamOffset, bool skipElement)
 {
 	//BP_ZONE("BfResolvedTypeSet::GenericTypeEquals");
 
+	if (!skipElement)
+	{
 		if (auto elementedTypeRef = BfNodeDynCast<BfElementedTypeRef>(rhs))
 		{
 			if (!GenericTypeEquals(lhsGenericType, lhsTypeGenericArguments, elementedTypeRef->mElementType, ctx, genericParamOffset))
@@ -4072,6 +4109,7 @@ bool BfResolvedTypeSet::GenericTypeEquals(BfTypeInstance* lhsGenericType, BfType
 			if (!GenericTypeEquals(lhsGenericType, lhsTypeGenericArguments, qualifiedTypeRef->mLeft, ctx, genericParamOffset))
 				return false;
 		}
+	}
 
 	if (auto genericTypeRef = BfNodeDynCastExact<BfGenericInstanceTypeRef>(rhs))
 	{
@@ -4122,11 +4160,66 @@ bool BfResolvedTypeSet::GenericTypeEquals(BfTypeInstance* lhsGenericType, BfType
 
 bool BfResolvedTypeSet::GenericTypeEquals(BfTypeInstance* lhsGenericType, BfTypeVector* lhsTypeGenericArguments, BfTypeReference* rhs, BfTypeDef* rhsTypeDef, LookupContext* ctx)
 {
-	BfTypeInstance* rootOuterTypeInstance = ctx->mModule->mCurTypeInstance;
+	int genericParamOffset = 0;
+	bool isFullyQualified = false;
+	BfTypeInstance* outerType = NULL;	
+
+	if (auto genericInstTypeRef = BfNodeDynCast<BfGenericInstanceTypeRef>(rhs))
+	{
+		int checkIdx = 0;
+		auto checkTypeRef = genericInstTypeRef->mElementType;
+		while (checkTypeRef != NULL)
+		{
+			checkIdx++;
+			if (checkIdx >= 2)
+			{
+				isFullyQualified = true;
+
+				BfType* checkType = ctx->GetCachedResolvedType(checkTypeRef);
+				if (checkType != NULL)
+					outerType = checkType->ToTypeInstance();
+
+				if (outerType != NULL)
+				{
+					BfTypeInstance* lhsCheckType = lhsGenericType;
+					while (lhsCheckType->mTypeDef->mNestDepth > outerType->mTypeDef->mNestDepth)
+					{
+						lhsCheckType = ctx->mModule->GetOuterType(lhsCheckType);
+					}
+					if (lhsCheckType != outerType)
+						return false;					
+
+					if (outerType->mGenericTypeInfo != NULL)
+						genericParamOffset = (int)outerType->mGenericTypeInfo->mTypeGenericArguments.mSize;
+				}
+
+				break;
+			}
+
+			if (auto elementedTypeRef = BfNodeDynCast<BfElementedTypeRef>(checkTypeRef))
+			{
+				checkTypeRef = elementedTypeRef->mElementType;
+				continue;
+			}
+
+			if (auto qualifiedTypeRef = BfNodeDynCast<BfQualifiedTypeReference>(checkTypeRef))
+			{
+				checkTypeRef = qualifiedTypeRef->mLeft;
+				continue;
+			}
+			break;
+		}
+	}
+
+	BfTypeInstance* rootOuterTypeInstance = NULL;
+	auto rhsGenericTypeInstRef = BfNodeDynCastExact<BfGenericInstanceTypeRef>(rhs);
+
+	if (!isFullyQualified)
+	{
+		rootOuterTypeInstance = ctx->mModule->mCurTypeInstance;
 		if ((rhsTypeDef == ctx->mRootTypeDef) && (ctx->mRootOuterTypeInstance != NULL))
 			rootOuterTypeInstance = ctx->mRootOuterTypeInstance;
 		
-	auto rhsGenericTypeInstRef = BfNodeDynCastExact<BfGenericInstanceTypeRef>(rhs);
 		if (rhsGenericTypeInstRef == NULL)
 		{
 			if (auto rhsNullableTypeRef = BfNodeDynCastExact<BfNullableTypeRef>(rhs))
@@ -4173,6 +4266,10 @@ bool BfResolvedTypeSet::GenericTypeEquals(BfTypeInstance* lhsGenericType, BfType
 
 			return false;
 		}
+	}
+
+	if (rhsGenericTypeInstRef == NULL)
+		return true;
 
 	BfTypeDef* elementTypeDef = ctx->mModule->ResolveGenericInstanceDef(rhsGenericTypeInstRef, NULL, ctx->mResolveFlags);
 	if (elementTypeDef == NULL)
@@ -4180,8 +4277,6 @@ bool BfResolvedTypeSet::GenericTypeEquals(BfTypeInstance* lhsGenericType, BfType
 	if (elementTypeDef->GetDefinition() != lhsGenericType->mTypeDef->GetDefinition())
 		return false;
 
-	int genericParamOffset = 0;
-
 	// Do we need to add generic arguments from an in-context outer class?
 	if ((elementTypeDef->mOuterType != NULL) && (rootOuterTypeInstance != NULL) && (rootOuterTypeInstance->IsGenericTypeInstance()))
 	{
@@ -4199,7 +4294,7 @@ bool BfResolvedTypeSet::GenericTypeEquals(BfTypeInstance* lhsGenericType, BfType
 		}
 	}
 
-	if (!GenericTypeEquals(lhsGenericType, lhsTypeGenericArguments, rhs, ctx, genericParamOffset))
+	if (!GenericTypeEquals(lhsGenericType, lhsTypeGenericArguments, rhs, ctx, genericParamOffset, isFullyQualified))
 		return false;
 
 	return genericParamOffset == (int)lhsTypeGenericArguments->size();

IDEHelper/Compiler/BfResolvedTypeUtils.h

@@ -1861,7 +1861,6 @@ class BfGenericTypeInfo
 public:
 	typedef Array<BfGenericTypeParamInstance*> GenericParamsVector;
 
-	Array<BfAstNode*> mTypeGenericArgumentRefs;
 	BfTypeVector mTypeGenericArguments;
 	GenericParamsVector mGenericParams;
 	BfGenericExtensionInfo* mGenericExtensionInfo;
@@ -2635,7 +2634,7 @@ public:
 public:
 	static BfTypeDef* FindRootCommonOuterType(BfTypeDef* outerType, LookupContext* ctx, BfTypeInstance*& outCheckTypeInstance);
 	static BfVariant EvaluateToVariant(LookupContext* ctx, BfExpression* expr, BfType*& outType);
-	static bool GenericTypeEquals(BfTypeInstance* lhsGenericType, BfTypeVector* lhsTypeGenericArguments, BfTypeReference* rhs, LookupContext* ctx, int& genericParamOffset);
+	static bool GenericTypeEquals(BfTypeInstance* lhsGenericType, BfTypeVector* lhsTypeGenericArguments, BfTypeReference* rhs, LookupContext* ctx, int& genericParamOffset, bool skipElement = false);
 	static bool GenericTypeEquals(BfTypeInstance* lhsGenericType, BfTypeVector* typeGenericArguments, BfTypeReference* rhs, BfTypeDef* rhsTypeDef, LookupContext* ctx);
 	static void HashGenericArguments(BfTypeReference* typeRef, LookupContext* ctx, int& hash, int hashSeed);
 	static int DoHash(BfType* type, LookupContext* ctx, bool allowRef, int hashSeed);

IDEHelper/Tests/src/Generics.bf

@@ -2,6 +2,7 @@
 
 using System;
 using System.Collections;
+using System.Reflection;
 
 namespace LibA
 {
@@ -341,6 +342,72 @@ namespace Tests
 
 		}
 
+		class ClassH<T, T2>
+		{
+			public class Inner<T3>
+			{
+
+			}
+		}
+
+		class OuterB<T>
+		{
+			public class Inner<T2>
+			{
+				public class MoreInner<T3>
+				{
+					public static Inner<int8> sVal;
+					public static Inner<int8>.MoreInner<int16> sVal2;
+				}
+			}
+
+			public static Inner<T>.MoreInner<T> sVal;
+		}
+
+		class OuterA<T, T2>
+		{
+			public typealias AliasA = OuterB<uint8>;
+			public typealias AliasB<T3> = OuterB<T3>;
+
+			public class Inner<T3>
+			{
+				public class MoreInner<T4>
+				{
+					public static Inner<int8> sVal;
+					public static Inner<int8>.MoreInner<int16> sVal2;
+				}
+
+				public class MoreInnerB
+				{
+
+				}
+			}
+
+			public class InnerB
+			{
+
+			}
+
+			public static OuterA<int,float>.Inner<int16> sVal;
+			public static Inner<int16> sVal2;
+			public static AliasA.Inner<int16> sVal3;
+			public static OuterA<T, T2>.InnerB sVal4;
+			public static Inner<int16>.MoreInnerB sVal5;
+		}
+
+		class OuterC
+		{
+			static void Do()
+			{
+				OuterA<int8, int16>.AliasA.Inner<int32> val1 = scope OuterB<uint8>.Inner<int32>();
+				OuterA<int8, int16>.AliasB<uint8>.Inner<int32> val1b = scope OuterB<uint8>.Inner<int32>();
+				OuterA<int8, int16>.AliasA.Inner<int32>.MoreInner<uint32> val2 = scope OuterB<uint8>.Inner<int32>.MoreInner<uint32>();
+				OuterB<int8>.Inner<int8>.MoreInner<int8> val3 = OuterB<int8>.sVal;
+				System.Collections.Dictionary<int, float> dict;
+				OuterA<int8, int16>.Inner<int16>.MoreInnerB val4 = OuterA<int8, int16>.sVal5;
+			}
+		}
+
 		[Test]
 		public static void TestBasics()
 		{
@@ -415,6 +482,11 @@ namespace Tests
 			Test.Assert(Conv<int...>(12.34f) == 12);
 			Test.Assert(Conv<int,?>(12.34f) == 12);
 			//MethodH(scope List<int>());
+
+			var specializedType = typeof(Dictionary<int, float>.Enumerator) as SpecializedGenericType;
+			Test.Assert(specializedType.UnspecializedType == typeof(Dictionary<,>.Enumerator));
+			var t = typeof(Array2<>);
+			t = typeof(ClassH<,>.Inner<>);
 		}
 	}
 
@@ -487,9 +559,6 @@ namespace Tests
 			b = Foo<int>.value > val;
 			b = Foo<int>.Inner<float>.value2 < 1.2f;
 			b = Foo<int>.Inner<float>.value2 > 2.3f;
-
-			var t = typeof(Array2<>);
-			t = typeof(Dictionary<,>.Enumerator);
 		}
 	}
 }